Pull-Type Coaxial Disc Transmission for On-the-Fly Gear Shifting
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Solution Overview
Problem
Existing pull type transmission systems in food processors lack the ability to conveniently adjust the transmission ratio in real-time, requiring users to stop and adjust the gear positions manually, which disrupts continuous operation.
Innovation Solution
A pull type transmission system with a coaxial column of rotary discs of varying diameters, a rope tying position, a resilience mechanism, and a control module that allows for continuous gear shifting through up-down pulling actions without interrupting the operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single round block or coaxial round blocks with different diameters are used in a pull type transmission system, then the structure is simple, but the transmission ratio cannot be adjusted conveniently at any time
Solution Approach 1:
The patent applies the dynamics principle by making the limit component movable instead of fixed. The limit component can move vertically along the guide structure to switch between limiting different rotary discs, enabling dynamic adjustment of transmission ratio during operation. This resolves the contradiction by allowing convenient transmission ratio adjustment without requiring complex manual gear shifting mechanisms.
Solution Approach 2:
The patent applies the self-service principle through the resilience mechanism that automatically reels the pull rope back after pulling. When the limit component moves to a different position, the resilience mechanism automatically rewinds the pull rope to the appropriate rotary disc without user intervention. This enables automatic transmission ratio switching, improving ease of operation while maintaining simple structure.
2Adaptability or versatility
If the transmission ratio is changed by adjusting gear positions or coaxial round blocks, then the transmission ratio can be changed, but the operation must be stopped before adjustment
Solution Approach 1:
The patent applies the preliminary action principle by pre-arranging multiple rotary discs with different diameters on the same axis and a guide structure with limit components at different positions. This preliminary configuration allows the system to switch between different transmission ratios by simply moving the limit component, without requiring stopping the operation or complex adjustments during use, thus maintaining both adaptability and continuous operation capability.
Solution Approach 2:
The patent introduces the limit component as an intermediary element that mediates between the pull rope and different rotary discs. By moving the limit component along the guide structure, the system can switch which rotary disc is engaged with the pull rope, enabling transmission ratio changes without interrupting the overall operation. This intermediary mechanism resolves the contradiction between adaptability and productivity.
3Adaptability or versatility
If multiple coaxial round blocks with different diameters are used, then different transmission ratios are available, but the structure becomes more complex and requires manual adjustment
Solution Approach 1:
The patent applies the self-service principle through the resilience mechanism that automatically reels the pull rope back after it has been pulled out. When the limit component moves to engage a different rotary disc, the resilience mechanism automatically winds the pull rope onto the new disc without user intervention. This eliminates complex manual adjustment operations while maintaining multiple transmission ratio options, resolving the contradiction between adaptability and ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables seamless adjustment of gear ratios by simply pulling the rope up or down, allowing for continuous operation and enhanced user convenience.
Implementation Method 1
the pull mechanism is connected to a resilience mechanism providing a resilience force and is capable of retracting the pull rope to a different rotary disc after the pull rope is pulled out
Data Source
Figure 1a~1c
Figure 1d~2
Figure 3~4a
AI summary
The invention relates to a pull type transmission system, which comprises a pull mechanism. The pull mechanism at least comprises a coaxial column, the coaxial column is formed by connecting rotary discs with different diameters, and planes connecting the rotary discs with different diameters are connecting faces. The pull mechanism is provided with a rope tying position, the rope tying position is arranged on a side face of the pull mechanism, and the pull rope is connected to the pull mechanism through the rope tying position at one end and is wound around the rotary discs. The pull mechanism is connected to a resilience mechanism and is used for retracting the pull rope after the pull rope is pulled out. The invention provides a non-electric pull type transmission system. The corresponding rotating gears can be changed through simple up-down pulling actions without having to shut down and replace equipment or interrupt the pulling operation, making the use more convenient.